Though self and myself sound similar, they are used in different situations and must not be confused. Myself is used when an agent needs to refer itself while trying to address a different agent or agentset within an ask command or a reporter (e.g., of, with). For example, if you wanted a house door to open its door only when a person has the correct keycode, you can write

ask person 1 [ 
    ask houses [ 
        if keycode = [keycode] of myself [ open-front-door ] ] ]

where myself refers to person 1. Myself is often used with of to report or set variables of the asking agent (ask turtles with [pcolor = [pcolor] of myself] or ask turtles with [size < [size] of myself ]). See Myself Example in the Models Library for more examples.

Self is used when there is a single ask command, and the turtle, link, or patch is trying to refer to themselves. For example,

let my-turtle nobody 
create-turtles 1 [ set shape “turtle” set my-turtle self] 
ask my-turtle [ forward 2]

would set the variable my-turtle to be the newly created turtle. It is rarely used, because [color] of self is equivalent to just saying color.